Dear nharris28,
Most of your assumptions could be true except the one where your employer could be denied group coverage due to your conditions. Group insurance is guaranteed issued, that means a group can not be denied health insurance due to group member’s health issues. In addition regardless of how an employee’s health issues and claims could affect the group premium rate, you are not required to disclose this type of information to your employer.
Sincerely,
Amir Mostafaie